Nut-producing, wild peanuts (Arachis spp.) were planted in two experiments in 1995 and 1997 at the Indian River Res. and Educ. Center (IRREC) in cultivated soil, and one was planted in 1997 at the Range Cattle REC in bahiagrass (Paspalum notatum Flugge). Species were A. benensis W. C. Gregory C. E. Simpson; A. Diogoi Hoelme; A. glabrata Benth.; A. Hoehnei Krapov. W. C. Gregory; A. Kempff-Mercadoi Krapov., W. C. Green W. E. Simpson; A. Kuhlmannii Krapov. W. C. Gregory; A. Kretschmeri Krapov. W. C. Gregory; A. Pintoi Krapov. W. C. Gregory; A. repens Handro; A. Rigonii Krapov. W. C. Gregory; and A. stenosperma Krapov. & W. C. Gregory. Evaluations included plant spread and foliage density, flowering, crude protein (CP) and tissue P concentrations, nut number and yield, seed quality, and plant yield at the IRREC. Results from these experiments indicated that moderate to large diversity existed among the >30 entries studied. At IRREC, A. Pintoi (cv. 'Amarillo') and other entries of this species had favorable attributes of moderate spread rate, excellent foliage density, moderate to excellent persistence, and good nut production. Arachis stenosperma entries had high lateral-shoot growth rates, excellent nut production, and moderate foliage density, but were less persistent than A. Pintoi plants. Entry IRFL 6969 (unnamed species) had similar attributes to A. Pintoi peanuts, and with a few other entries appear to be worthy of further research. All entries had high foliage CP concentrations which averaged 226 g kg(-1) (139-313 g kg(-1)), and P concentrations which averaged 2.4 g kg(-1) (1.9-3.0 g kg(-1)). At the Range Cattle REC where 35 entries were evaluated under grazing, none of the five entries established from seed persisted beyond 1 yr. At 39 mo after planting, there were 15 surviving entries out of an initial 35. Entries IRFL 6969, 7162, and 7151 were the best with 92, 75, and 50% survival, but they were not vigorous and had only spread to cover an area a few m(2). Although competitive with bahiagrass and tolerant of periodic mob-grazing, none of the Arachis entries tested at the Range Cattle REC seemed to warrant consideration for further testing for release as a cultivar.

The Pantanal wild peanut (Arachis Kretschmeri Krap and Greg., 1994) is a perennial that has been grown since 1977 at the Indian River Research and Education Center. Several experiments were conducted and many observations made during the intervening period in an effort to determine the best use for the Pantanal. This vigorous, erect/prostrate, many-branched legume has orange-colored flowers, is tolerant of short-lived flooding and yet survives droughts. It is best adapted to sandy soils with pH of 5.0 and above. High nut production is one of its best attributes. Among more than 100 tropical legumes evaluated, the crude protein (CP) was in the highest bracket; and in vitro organic matter digestibility (IVOMD) of the Pantanal was the highest. Average CP and IVOMD were about 150 and 700 g kg(-1), respectively. It associated well with Pangola digitgrass (Digitaria eriantha Steud) for about five years, but does not persist as well with bahiagrass (Paspalum notatum Stent.) unless the soil is disturbed every year or two. Under a system of annual disking in spring, plant populations increase and persistence is assured. Commercial tests using a digger/screening device indicated that several factors can be responsible for poor nut germination. A drying temperature of 35 to 38 degrees C appears to be better than 38 to 41 degrees C. Preliminary cleaning of nuts after drying by passing the material through a standard grain combine can have a devastating effect on germination if the concave is too snail and/or the cylinder speed is above 450-500 rpm. A wide-open rasper bar and slow air flow may help. In any event, rains after initial rotovating for harvest result in held germination of nuts within several days. This results in lower nut germination. Suggestions for the use of the Pantanal wild peanut as feed for deer, dove, and turkeys are described.

Three experiments were conducted with the perennial pasture grass Paspalum atratum cv. Suerte at Ona, Florida. In Experiment I, Suerte was evaluated in 1992-1993 on a Pomona fine sand for responses to dolomite (0, 1.1, 2.2; 3.4, 4.5 and 6.7 t/ha) and broadcast-sowing rates (5.6, 13.6 and 20.5 kg/ha pure, live seed [PLS]). Dolomite increased soil pH (4.5 + 0.22X, X = t/ha), Suerte density (plants/m(2) = 32.7 + 7.3X 0.99X(2)) and mean 42-d forage yield (kg/ha = 2904 + 248.0X - 25.1X(2)). Dolomite did not affect crude protein (6.1%), but did increase IVOMD (% = 53.6 + 0.65X). A target pH for Suerte should be about 5.0, which was achievable with about 3.0 t/ha dolomite on this sandy Florida soil. Initially, density increased with increasing sowing rate (plants/m(2) = 18.6 + 1.7X, X >5.6 kg/ha PLS), but there was no difference in density after 2.5 years (33 plants/m(2)).In Experiment II, Suerte was broadcast-sown at 1.5, 3.0, 4.5 and 6.0 kg/ha PLS on March 1, May 1, July 1 and September 1, 1995. Average density in the 84-d period after sowing from March and May increased with increasing sowing rates (plants/m(2) = 11.3 + 2.3X, X = >1.5 kg/ha PLS), whereas July and September sowings failed due to flooded soil. Mean yield in June and July 1996 from March and May 1995 sowings increased with increasing sowing rate (kg/ha = 1200 + 240X). When broadcast, seed should be sown at 5-6 kg/ha PLS.In Experiment III, Suerte seed was flooded for 0, 2, 4, 6, 8, 10, 14, 21 and 28 d, drained, and incubated for 28 d. Suerte seed lost about 2% germination for each day it was flooded.

Crop ScienceVolume 37, Issue 5 cropsci1997.0011183X003700050055x p. 1675-1675 Registration of Germplasm Registration of Evenia Aeschynomene IRFL 6945 Germplasm A. E. Kretschmer Jr., A. E. Kretschmer Jr.Search for more papers by this authorW. D. Pitman, W. D. PitmanSearch for more papers by this authorT. C. Wilson, T. C. WilsonSearch for more papers by this authorR. C. Bullock, R. C. BullockSearch for more papers by this author A. E. Kretschmer Jr., A. E. Kretschmer Jr.Search for more papers by this authorW. D. Pitman, W. D. PitmanSearch for more papers by this authorT. C. Wilson, T. C. WilsonSearch for more papers by this authorR. C. Bullock, R. C. BullockSearch for more papers by this author First published: 01 September 1997 https://doi.org/10.2135/cropsci1997.0011183X003700050055xCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article.Citing Literature Volume37, Issue5September–October 1997Pages 1675-1675 RelatedInformation

Paspalum atratum cv. Suerte, a leafy, perennial bunchgrass rapidly established from seed and adapted to moist soils, was grazed during 2 years by 3.3, 6.6 and 10 yearling steers/ha at Ona, Florida in a replicated trial. In an unreplicated ranch trial, 80 heifers grazed 16.3 ha of Suerte. Steers grazed for 140 d (each year) at 10 steers/ha; 168 d (each year) at 6.6 steers/ha; and 168 (1993) and 224 d (1994) at 3.3 steers/ha. There was an interaction between year, month and stocking rate for average daily gain (ADG) over common 140-d grazing seasons. Variation in rainfall between years and changes in rainfall and nutritive value of Suerte within year influenced ADG. Over both years, ADG averaged 0.71, 0.55 and 0.49 kg/d for 3.3, 6.6 and 10 steers/ha, respectively. On the ranch, heifer ADC was 0.60 kg/d over 119 d with 4.9 heifers/ha. Two-year average liveweight gains were 460, 610 and 680 kg/ha at 3.3, 6.6 and 10 steers/ha, respectively. Suerte presentation yields declined linearly from 2870 kg/ha in April to 670 kg/ha in August with 10 steers/ha. Presentation yields with 3.3 steers/ha increased linearly from 2050 kg/ha in April to 6940 kg/ha in August. There was no difference in presentation yield over months with 6.6 steers/ha (2720 kg/ha). Crude protein (CP) and in vitro organic matter digestibility (IVOMD) of Suerte were not affected by stocking rate, but CP concentration (range 76-142 g/kg) changed quadratically over months, while IVOMD (range 58-68%) declined linearly. Suerte plant density (13.5 plants/m(2)) was not affected by stocking rate or year Under Florida conditions, Suerte should be stocked at 6 yearlings/ha, which will result in about 0.6 kg/d ADG over a 168-d season. Suerte may have potential as a valuable grass for growing young cattle in the humid tropics.

Alysicarpus Necker ex Desv. and Desmodium Desv. have potential for increased use as pasture legumes in warm‐temperate and subtropical environments. Seven accessions of D. heterocarpon (L.) DC. and 40 accessions of Alysicarpus, primarily A. vaginalis (L.) DC., were evaluated in Louisiana in 1995 and 1996. Single‐row plantings with three replications in randomized complete block designs were established at the Iberia, Rosepine, and Southeast Research Stations. Data collected were visual stand ratings during the 1995 and 1996 growing seasons. An uncharacteristic period of 96 h with only two brief afternoon periods above freezing in February 1996 at Rosepine provided an opportunity to discriminate among entries for winter hardiness and to identify individual plants from each D. heterocarpon entry possessing winter hardiness. Alysicarpus plants did not survive the winter, but several accessions produced reseeded stands in 1996. Performance of the Alysicarpus germplasm was substantially better at the Southeast Station than at other locations, while more Desmodium entries survived at Rosepine than at the other locations despite lower winter temperatures at Rosepine. The surviving D. heterocarpon plants provide a potential source of winter hardiness for development of a perennial warm‐season pasture legume for the lower gulf coast region.

'Suerte' Paspalum atratum Swallen, a recent introduction from Brazil, is a leafy, perennial bunchgrass that may provide good cattle weight gains during the summer on wet, acid soils. Yield and nutritive value of Suerte were evaluated by clipping at 10- and 25-cm stubble heights every 20, 40, and 60 d over 240- to 248-d growing seasons for 2 yr at Ona and Immokalee, FL. Annual dry matter (DM) yield was affected by year and location, with 14.8 and 13.9 Mg ha(-1) produced at Ona in 1992 and 1993, respectively, and 8.3 and 6.0 Mg ha(-1) at Immokalee in 1993 and 1994. Eighty percent of DM yield was produced during the rainy June to September period, with little growth in cool or dry months. Location and clipping intervals also interacted for annual DM yield, which was 10.6, 17.2, and 15.1 Mg ha(-1) at Ona and 5.6, 8.9, and 6.8 Mg ha(-1) at Immokalee for the 20-, 40-, and 60-d clipping intervals, respectively Stubble height had no effect on annual DM yield. Yield averaged 680, 2180, and 2740 kg ha(-1) at each of the 12, 6, and 4 harvests for the 20-, 40-, and 60-d clipping intervals. Tiller number per plant (measured at three dates during the growing season) and plant basal area at the end of the studies increased linearly as clipping interval increased. There was no loss of plants after 2 yr of clipping at Ona, but there was a 12% loss at Immokalee. Both crude protein (CP) (97, 82, and 52 g kg(-1) for 20, 40, and 60 d, respectively) and in vitro organic matter digestion (IVOMD) (578, 552, and 520 g kg(-1), respectively) decreased linearly over clipping intervals. These indices changed quadratically over the growing season with greatest values in April or May (91 g CP kg(-1) and 600 g kg(-1) IVOMD) and lowest values in August or September (72 g CP kg(-1) and 510 g kg(-1) IVOMD). When rotationally grazed, Suerte should have a 20- to 40-d rest period between grazings to provide high DM yield and nutritive value.

'Suerte' Paspalum atratum Swallen, a perennial bunch grass, contains 60 to 70 g crude protein kg(-1) by August if the grass is fertilized once in early summer. To determine if this lever of crude protein in Suerte limits the growth of young cattle, average daily gain (ADG) of weaned steers grazing Suerte and, receiving 0.8 kg hd(-1) d(-1) of cottonseed meal (CSM) was compared with gains for steers lied no CSM, Pastures were fertilized with 56 kg N ha(-1) on 7 June 1995 and steers grazed from 14 June to 6 September, The ADG response depended on supplementation treatment and 28-d weigh date. There was no difference in ADG over dates for steers receiving CSM (average 0.49 kg hd(-1) d(-3)), while ADG for steers with no CSM declined linearly from 0.39 to 0.11 kg hd(-1) d(-1) from July to September. Crude protein in hand-plucked Suerte, collected twice weekly, declined linearly from 96 g kg(-1) at 7 d after fertilization to 51 g kg(-1) at 91 d. At 55 d after fertilization, Suerte dropped below 70 g crude protein kg(-1). In vitro organic matter digestion (IVOMD) changed quadratically over time, from 565 g kg(-1) at the start of the trial to a low of 495 g kg(-1) in August at 77 d after fertilization. Unless Suerte is fertilized every 6 to 7 weeks during the summer, crude protein may limit growth of young cattle not supplemented with protein.

Seedlings of 'Suerte' Paspalum atratum, a new pasture grass, were evaluated in 1994 at Ona, FL for reaction to herbicides. Seedling density was 0.0 plants/ft(2) (or/m(2)) 70 d after preemergence treatment with clomozone, fluometuron, and imazethapyr vs. 4.0/ft(2) (43/m(2)) for no herbicide. Preemergence diuron, metribuzin, trifluarlin, and norflurazon also gave substantially lower densities than no herbicide. Postemergence (28 d) treatment with 2,4-D and dicamba + 2,4-D reduced Suerte density somewhat (to 2.4/ft(2) or 26/m(2)). Density with dicamba alone (avg 3.3/ft(2) or 36/m(2)) was not significantly different from that with no herbicide. Spraying 2-yr old Suerte pasture in 1994 with dicamba + 2,4-D, glyphosate, hexazinone, nicosulfuron, metasulfuron-methyl, sulfometuron-methyl, or triclopyr resulted in little injury and no kill. Fluazifop resulted in injury but no kill, while higher rates of glyphosate resulted in injury and an average 53% kill. On 18 Apr. 1995, 2 rates of fluazifop and 4 rates of glyphosate were applied to 2-yr old Suerte pasture at 2 locations. After 70 d, all treatments had lower densities of live plants than with no herbicide, except for glyphosate at the lowest rate. Percentage kill from glyphosate = -1.3 + 18.6X or 16.6 X, where X = active ingredient in lb/A or kg/ha. On 27 June 1995, the 7 treatments above were applied to pasture, with glyphosate applied both with and without an additional 10 lb/A (11 kg/ha) of (NH1)(2)SO6. Addition of (NH1)(2)SO4 increased efficacy of glyphosate at the lower rats of application. There was no difference between April and June application for percentage dead Suerte seedlings, but dicamba, hexazinone, metsulfuorn-methyl, and triclopyr may be useful for control of specific weeds in established Suerte pasture. Glyphosate at 2 lb/A (2.2 kg/ha) with 10 lb/A (11 kg/ha) (NH4)(2)SO4, or 3 lb/A (3.4 kg/ha) of glyphosate alone, in water containing antagonistic salts, provided about 90% kill of established Suerte.

Many grasses have low crude protein (CP) concentrations in the fall, especially when used for deferred grazing or for hay. Late N fertilization (LNF) two or three weeks before utilization in November of early December has been shown to increase CP concentration to 70 g kg(1) or above. With forage CP above this level cattle intake would not be limited. No information is available on the distribution of CP or digestible energy in grasses after LNF. An experiment was designed to determine the effect of initial fall N fertilization (INF) applied on 22 September or on 2 November, and of a LNF applied on 18 December, on the distribution of CP and in vitro organic matter digestibility (IVOMD) in five, 25-cm segments of Bigalta limpograss [Hemarthria altissima (Poir.) Staph & C. E. Hubb.]. The grass that had received 50 or 150 kg ha(-1) N rates in September and November also received 0, 50, or 150 kg ha(-1) of N as LNF. Only small yield differences existed among like segments (R-2 < 0.25), regardless of date, INF, or LNF. Crude protein was twice the concentration in the terminal segment than in any other segment and increased segments (N treatments averaged) was 79 and 100 g kg(-1) (7.9 and 10.0%) for the September and November dates, respectively. The lowest CP was 13 g kg(-1), found in a basal segment. The IVOMD values were all high, ranging from 580 to 654 for the November INF date. Calculated TDN data reflected the IVOMD data with the TDN:CP ratios being used to evaluate the feeding value of the segments. Except for most November INF-LNF N rates and several N rates for September, only the terminal segments were deemed to have a balanced TDN (energy):CP ratio (values at or below = 7). Unbalanced (CP deficient) and lower segments in November and September N-fertilized grass had TDN:CP ratios ranging from 13 to 19 and 20 to 28, respectively.

Atra paspalum (Paspalum atratum Swallen), a recent grass introduction which can be established from seed, was evaluated at Ona, FL to determine when cattle should be withdrawn from pasture to allow an adequate seed crop. Three experiments were conducted with varying rest period lengths before seed harvest. In Exp. I (1993), grass had a 53-, 88-, or 123-d rest period. Seed yield increased (P < 0.001) up to 100 d of rest. Mean yields for the periods were 109, 266, and 258 kg ha(-1), respectively. In Exp. II (1994), rest periods were 68, 92, and 119 d, compared to uncut grass (260-d period). Seed yield increased linearly (3, 70, and 135 kg. ha(-1), respectively), but values were all lower than those for uncut grass (219 kg ha(-1)). At Quail Creek Ranch (1994), a 16.2-ha pasture was prated with 80, 304-kg heifers beginning in April to provide 68-, 87-, and 105-d rest periods, which resulted in 33, 96, and 155 kg ha(-1) of seed, respectively. Inflorescence density changed (P < 0.001) with rest period length in Exp. I and II (32, 52, and 45 m(-2) and 2, 19, and 24 m(-2), respectively). Yield of grass remaining after seed harvest in Fxp. I increased (P < 0.001) with length of rest period (6.15, 12.44, and 16.88 Mg ha(-1), respectively). Crude protein (40.4, 36.0 and 31.7 g kg(-1), respectively) and IVOMD of grass (48.8, 45.3, and 43.0%, respectively) declined (P < 0.001) as rest period increased. Seed yield can be maximized by withdrawing cattle from grazed (equivalent of 5 hd ha(-1)) atra paspalum pasture about 100 d before seed harvest. Forage remaining after seed harvest would make hay suitable for wintering protein-supplemented cows.

'Callide' rhodesgrass (Chloris gayana Kunth), a perennial seed-producing grass, was introduced from Australia in 1988. To determine its productivity and quality in the fall, an experiment was devised where 56, 112, or 168 kg ha(-1) of N were applied on 18 Sep. 1990 and to different plots on 16 Oct. 1990 as initial-N fertilization (INF). Some INF plot treatments (controls) were harvested on 27 Nov. 1990 to determine fall growth response to date and N rate while, on the same day, the remainder received a late-N fertilization (LNF) of 56, 112, or 168 kg ha(-1) in all combinations with the remaining unharvested INF treatments. The completely randomized block design had five replications. The LNF plots were harvested on 17 December. All plots were harvested again on 22 Jan. 1991 to determine effect of residual N. Heavy rains after the September INF treatments probably caused leaching of N, since 27 November yields from the September plots were not significantly greater (P=0.05) than for the October plots. Crude protein (CP) and in vitro organic matter digestion (IVOMD) on 27 November were greater for the October than for the September grass. December yields of LNF plots were similar to those of control plots harvested on 27 November. Average CP in November for the September and the October INF plots were 64 and 115 g kg(-1), respectively. On 17 December, after LNF fertilization, CP averages were 85 and 111 kg ha(-1), respectively, for September and October INF plots. Average IVOMD values were 465 and 522 (November) and 505 and 516 g kg(-1) (December), respectively, for September and October INF plots. Average grass yield on 22 January was 1071 and 1196 kg ha(-1), CP was 132 and 151 g ha(-1), and IVOMD was 638 and 641 g ha(-1), respectively, for September and October INF plots. Based upon this study, it appears that Callide productivity in the late fall and winter will be adequate when fertilized in mid-October with about 75 to 100 kg ha(-1) of N. For high productivity during the February to June period, an additional application of 75 kg ha(-1) may be warranted. Compared with previous results from other commonly used warm-season grasses used in south Florida, Callide rhodesgrass is most productive during the cool season.

Seed of a new grass, atra paspalum (Paspalum atratum Swallen) IRFL 658, was planted at the Agric. Res. and Educ. Centers at Fort Pierce and Ona. Initial evaluation included botanical and agronomic descriptions, nutritive value, competitiveness with bahiagrass (Paspalum notatum Fluegge) and common bermudagrass (Cynodon dactylon L.), characteristics under grazing, and seed production, germination, and harvesting. A water tolerant, erect, rhizomotous, perennial, P. atratum IRFL 658 grows to about 2-m tall including panicles and has a dense fibrous root system. Shiny blackish seed are harvestable in October or November. Plants harvested at 100-, 241-, and 70-d regrowth had crude protein (CP) concentrations of 99, 29, and 83, and in vitro organic matter digestibility (IVOMD) of 676, 492, and 659 g kg-1, respectively. Upper leaves (51-64 cm) from 129 d growth plants represented about 26% and total leaves were about 53% of total plant weight. Upper leaves, upper 25-cm stems, and lower stems had CP and IVOMD concentrations of 59, 40, and 34, and 528, 527, and 520 g kg-1, respectively. Seed germination of easily, more difficult, and non-dislodgable seeds from racemes was 37.0, 27.5, and 23.5%, respectively. Seed yields from hand-harvested panicles were almost 200 kg ha-1, but normal combine harvesting was ineffective in removing seeds from the harvested panicles. Average daily gain (ADG) was 0.71 kg head-1 d-1 and total gain was 240 kg ha-1 over a 97-d grazing period. Atra paspalum requires high rates of N fertilizer to maintain adequate CP levels. Although its drought tolerance is not known, it is tolerant to waterlogging. It competes well with bahiagrass and bermudagrass. It does not grow rapidly in the winter and its foliage is susceptible to frost damage.

Evenia aeschynomene, Aeschynomene evenia C. Wright, is a new tropical legume that was introduced to the Agricultural Research and Education Center, Fort Pierce (ARECFP) in 1977. In 1991, seeds of A. evenia plants invading an abandoned field at the ARECFP were collected and designated as IRFL 6945. The object of this report is to present a description and research results of the species in general and of IRFL 6945 in particular. Data included flowering dates, winter liveover, disease and insect incidence, persistence under grazing, productivity, seed characterization, and agronomic characterization. An erect herb (to about 1.5 m), A. evenia is water tolerant and produces seed and green foliage throughout the year, barring frost. When no frost occurs, plants overwinter. Plant populations were greater than 50% at the end of a 5-yr clipping experiment. In September 1992, crude protein (CP) and in vitro organic matter digestibility (IVOMD) concentrations of the top 30 cm of widely-spaced plants were 235 and 665, and 296 and 677 g kg-1 for closely spaced plants, respectively. Seed weight of IRFL 6945 is as much as 42 to 65% greater than that of common aeschynomene, A. americana L. IRFL 470. Seed yield was about 100 kg ha-1 when combine harvested. Cattle graze succulent stems up to 6-mm diam. In the spring and summer, while they select smaller sizes in the autumn. Maturity of stem development rather than stem diameter appears to regulate consumption. In the second year, IRFL 6945 seedlings grew more rapidly than those of IRFL 470, and seedling recruitment occurred in bahiagrass from spring into fall compared with that of IRFL 470.

Macroptilium atropurpureum (DC) Urb. accessions were evaluated for incidence of foliar fungal diseases in two replicated field experiments; one planted in 1982 containing 84 M. atropurpureum accessions and one planted in 1986 containing 177 M. atropurpureum accessions. Moderate to high incidences of rust, Uromyces appendiculatus (Pers.:Pers.) Unger var. cras-situnicatus J. Irwin, were consistently observed during the cooler months of the year. Few or no pustules were observed on 22 M. atropurpureum accessions. Two of these accessions, IRFL 4655 and 4449, produced more (P = 0.05) forage than cultivar 'Siratro'. Foliar blight, Rhizoctonia solani Kuhn, was scattered throughout both plantings during the warmer, wetter months. Plants of three accessions in the 1982 planting were unaffected by foliar blight. However, at least one plant of all accessions in the 1986 planting was affected by foliar blight. There were no significant differences between incidence of foliar blight on Siratro and on other accessions. Accessions unaffected by powdery mildew, Oidium sp., were recorded in the 1982 planting when a moderate incidence of the disease was observed. Siratro was unaffected by powdery mildew. Seventy-nine of the 177 accessions of M. atropurpureum in the 1986 planting had significantly lower (P = 0.05) gray leaf spot, Phaeoisariopsis griseola (Sacc.) Ferraris, incidence than Siratro, during a severe epidemic. One accession unaffected by rust and gray leaf spot outyielded Siratro (P = 0.05).

Crop ScienceVolume 32, Issue 3 cropsci1992.0011183X003200030066x p. 836-836 Registration of Germplasms Registration of IRFL 4655 Macroptilium Atropurpureum Germplasm A. E. Kretschmer Jr., Corresponding Author A. E. Kretschmer Jr. n/a@.dne Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Corresponding author.Search for more papers by this authorR. M. Sonoda, R. M. Sonoda Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Search for more papers by this authorR. C. Bullock, R. C. Bullock Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Search for more papers by this authorT. C. Wilson, T. C. Wilson Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Search for more papers by this author A. E. Kretschmer Jr., Corresponding Author A. E. Kretschmer Jr. n/a@.dne Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Corresponding author.Search for more papers by this authorR. M. Sonoda, R. M. Sonoda Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Search for more papers by this authorR. C. Bullock, R. C. Bullock Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Search for more papers by this authorT. C. Wilson, T. C. Wilson Univ. of Florida, IFAS, Agric. Res. and Educ. Ctr., P.O. Box 248, Ft. Pierce, FI, 34954Search for more papers by this author First published: 01 May 1992 https://doi.org/10.2135/cropsci1992.0011183X003200030066xCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume32, Issue3May–June 1992Pages 836-836 RelatedInformation

A small-plot replicated cutting experiment was conducted from 1979 to 1983 to.select several tropical forage legumes for further evaluation under grazing conditions. The companion grass was 'Pangola' digitgrass (Digitaria decumbens Stent.). A rating system was devised to evaluate the 100 entries for legume vigor (LV) and legume plot coverage (LC). Genera included were Calopogonium, Centrosema, Desmanthus, Desmodium, Indigofera Macroptilium, Neonotonia, Stylosanthes, Teramnus, Vigna, and Zornia. In June and September, after harvesting selected plots with a small-plot sicklebar mower, aerial forage was removed from all plots using a flail-type harvester. Yield and forage digestibility and crude protein data were obtained from selected, highest LC plots to determine productivity. Rating LV was more difficult than LC because of the large difference in growth habits. At the end of 1982, 45 entries were rated as having 20% or less LC, and 25 with no plants. Legume vigor within a genus did not necessarily relate to LC (persistence). Legume coverage and LV ratings for climbing legumes were not related to legume yield or total yield, while for erect legumes LC, but not LV ratings, were correlated with legume yield. Persistence under grazing may not be related to persistence under clipping. Seventeen legumes were mostly selected from the experiment based on persistence under clipping and edaphic considerations. When placed under grazing evaluations, only seven were thought worthy of further research.